【摘要】 基于ERA5月尺度数据，分别计算干旱指标(SPI)和高温指标(STI),从复合型极端事件的角度分析了长江流域2022年夏季复合高温干旱事件及影响。研究结果表明：该事件是长江流域1979年以来覆盖范围最广的复合高温干旱事件，导致水资源供给减少，影响农业生产及民众健康，同时导致电力供需失衡，增加森林火灾风险；未来应在复合高温干旱事件的发生机制、联合监测和预测、影响评估、联合调度及适应性措施等方面加强研究。更多还原

【Abstract】 Based on monthly data from ERA5, this paper analyzed the droughts(Standardized Precipitation Index, SPI) and hot extremes(Standardized Temperature Index, STI) during the summer of 2022 in the Yangtze River Basin and its effects from the perspective of compound extremes. The results show that this event in the Yangtze River Basin affected the largest area since 1979, reducing water supply, affecting agricultural production and public health, leading to the imbalance of power supply and demand, and increasing the risk of forest fire. In the future, it is necessary to strengthen research on compound hot extremes and droughts from multiple aspects, including the physical mechanisms, joint monitoring and prediction, impact assessment, joint dispatching, and adaptation measures.更多还原